Re: Snowflakes - how do we know ?

Very deep. Over my head this one.

Re: Snowflakes - how do we know ?

Now this is a tricky one. I should know something about this from my thermodynamics days.
Snow flakes form as water droplets fall through air layers which are below freezing. The air layers have different temperatures. A small amount of water is added to the crystals as they are formed depending on air temperature but the amounts are different depending on the unique path the snowflake falls. Air currents are always changing so no two snow flakes undergo the same treatment. The water crystal molecules are lined up in a special way so each molecule has six sides an six points. Because each snow crystal undergoes it's own unique manufacturing process each one is subtly different.

Re: Snowflakes - how do we know ?

I would think on a molecular level, very few complex things could be absolutely identical.

Re: Snowflakes - how do we know ?

You are of course right, this is why entropy increases, we can never go back and start again.

Re: Snowflakes - how do we know ?

Regardless of shape Snowflakes are unobtrusive, Hail hurts, that's a fact I think.

Re: Snowflakes - how do we know ?

That's because it's hard

Re: Snowflakes - how do we know ?

Doh!!
The Snowflake Fairy of course Patsy! stevmk2

Re: Snowflakes - how do we know ?

Ah - now I think you could be onto something there !